California Secretary of State Alex Padilla does not know if any of the 1,500 people who were improperly registered to vote by the Department of Motor Vehicles (DMV) this year voted in the June primary elections, the Associated Press reports.

The California Department of Motor Vehicles (DMV) revealed Monday evening that it had registered 1,500 non-eligible people, including non-U.S. citizens, to vote between April and September, despite assuring the public for years it had safeguards to prevent that from happening.

A California law that registers every citizen to vote when they apply for a driver’s license also has resulted in over twice the number signing up as Democrats versus Republicans. The California Motor Voter Program (AB-1407) was passed in February

California’s Department of Motor Vehicles (DMV), already under fire for excessively long lines, told Secretary of State Alex Padilla on Wednesday that it made key errors in 23,000 voter registrations filed under the state’s 2017 “motor voter” law.